उत्तर : 2. "1958"
व्याख्या :

1. The Indira Gandhi Canal is the main canal of Rajasthan. Its old name was "Rajasthan Canal". It flows in the northwestern part of Rajasthan state. It is also called Maruganga of Rajasthan.

2. Rajasthan Canal Board (present name Indira Gandhi Canal Board) was formed in the year 1958.